i try newest ios 15.1(3)S0a and 12.2(33)SRE
in both case some times i obtain lowing traffic on interface and highest cpu - to 100%
after clear cef linicard i obtain growing traffic and cpu 0%
#sh proc cpu s
CPU utilization for five seconds: 87%/83%; one minute: 91%; five minutes: 96%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
7 1711512 87883 19474 4.06% 0.84% 0.89% 0 Check heaps
245 5688 10115351 0 0.16% 0.12% 0.13% 0 Ethernet Msec Ti
210 2276 2538856 0 0.08% 0.02% 0.01% 0 IP ARP Retry Age
211 44772 267882 167 0.08% 0.04% 0.05% 0 IP Input
244 428 326057 1 0.08% 0.00% 0.00% 0 Ethernet Timer C
#clear cef linecard
#sh proc cpu s
CPU utilization for five seconds: 0%/0%; one minute: 3%; five minutes: 3%
PID Runtime(ms) Invoked uSecs 5Sec 1Min 5Min TTY Process
157 36588 1511 24214 0.23% 0.02% 0.00% 0 Per-minute Jobs
346 110540 43940 2515 0.15% 0.06% 0.05% 0 HIDDEN VLAN Proc
211 45600 280259 162 0.07% 0.04% 0.03% 0 IP Input
